Apparatus for drawing and straightening wire



C. 0. JOHNSON. APPARATUS FOR DRAWHgG AN D STRAIGHTENING WIRE.

APPLICATION FILED APR- 23. 919.

Patnted Apr. 27, 1920.

CHARLES o. JOHNSON, or w'oncns'rnn, uassncnusn'rrs.

arranarus 'ron DRAWING m) srnnronrnmno wmn.

' Application filed April 28,

- To all whom it may concern:

Be it known that I, CHARLES O. J OHNSQN, citizen of the United States, residing at 22 Lakewood street, Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful A paratus for Drawing and Straightening ire, of

- which the following is a specification.

This invention relates to an apparatus for drawing and straightening very fine wire.

The general method of drawing and straightening fine wire is to draw it and 0011 it on a block in one operation; then take the coil from the block, place it on a reel, lubricate it and run it from the reel through a straightener and on to a block. 7 r

I have discovered that wire of this kind can be drawn, lubricated, straightened and coiled all in one operation and at many times higher velocity than is possible by the methods hitherto used, and that is the object of this invention. a I

Reference is to be had to the accompanying drawing which is a longitudinal sectional view of a portion of a wire drawing machine constructed in accordance with this invention and partly diagrammatical.

In order to accomplish the above specified results the wire is drawn from the last draw head 10 of any ordinary continuous wire drawing machine through a die in a die holder 11, and on a rotary carrier 12. The wire is wound around this carrier which pulls it through the die. This carrier supplies the wire to an ordinary wire pin straightener 13 and in passing to it the wire receives an oil bath from an oil receptacle 14 and then passes to the ordinary block 15 which may be of any desired diameter. The carrier'12 and the block 15 in accordance with this invention must be geared up in such a manner as to give them the same surface velocity substantially. This is done'by properly proportioning the pulleys 16 and 17which receive power from the driving shaft 18. This drive shaft 18 drives the carrier 12 through bevel gears or other gearing as may be'desired.

In this way although the block 15 pulls the wire through the straightenerit has no function to perform but the straightening and coiling and causes no stress on the wire, between the straightener and the carrier.

As is shown an ordinary pin straightener may be used. Inthis way the process of Specification or Letters min. I Patented Apr. 27, 1 920.

1919. Serial No. 292,039.

drawing and straightening of finest wire is greatly simplified. and such wire can be drawn and straightened at increased speed be made therein by any person skilled in theart without departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be limited to all the details of construction or to the specific form of drawing machine herein shown and described, but what I do claim is:

1. In an apparatus for straightening fine wire, the combination with a carrier for receiving the wire and passing it on, and a block on which the wire is wound, of a straightener between them and means for operating the carrier and block at such a ratio as to'eliminate all strain on the wire between the straightener and carrier and keep the wire taut.

2. In an apparatus for straightening fine wire, the combination with a rotary carrier for receiving the wire and passing it on and a block on which the wire is wound, o a straightener between them and means for rotating the carrier and block at the same surface velocity to prevent the application block on which the wire is wound, a straightener between them, means'for rotating the carrier and block at such a ratio as to eliminate all strain on the wire between the straightener and carrier, and -a wick for applying oil to the wire before it enters the straightener.

4. A process of straightening wire in one continuous operation, consisting in passing the wire from a rotary carrier on a wire drawing machine through an oil bath without stress on the wire, then through a pin straightener on to a drum of any desired size substantially as herein described.

5. 'In an apparatus for straightening fine wire, the combination of .a rotary carrier for drawing the wire through a die and passing it on, a block on which the wire is wound, a straightener between the bloclr and the carrier, means for lubricating the wire between the carrier and the straight-- ener, means for rotating the block and the carrier at such a ratio as to eliminate all strain on the wire, between the straightener and the carrier.

6. In an apparatus for straightening fine wire in one continuous operation and at a high velocity, the combination with a rotary carrier for drawing the wire throu h a die nd passing it on and a block on w ich the wire is wound, of a pin straightener between them, means for application of oil to the wire between the carrier and straightener, and means for rotating the' carrier and the block at the same surface velocity to prevent strain on the wire between the carrier and the straightener. v

7. In an apparatus for straightening fine wire in one continuous operation, the combination with a rotary carrier for receiving the wire from a die and passing it on, of a block on which the wire is. wound, a pinnation with a rotary carrier for receiving the wire from a die and passing it on, a rotary block, means for rotating the carrier and block at the same surface speed to carry the wire in a straight path from one to the other, of a straightener located directly between the carrier and block in such osition that the wire passes in a straight inc all the wayfrom t e carrier to the block.

In testimony whereof I havehereunto affixed my signature.

CHARLES O. JOHNSON. 

